Yes the tech2 alone does not write the vin number nor the vtd procedure, however they
could have connected it to a laptop and on tisweb or in their case global connect. And
they would have been able to do it for you. My guess they didn't want to. The equinox
is not a gds2 protocol until 2010. Regarding gm on autel is not available yet, scheduled
for the end of this year. For now gm flashing is only possible thru tisweb like the other
member said.